Coke-oven door.



J. A. MCGREARY.

com OVEN DooR.

APPLICATION FILED DBO 12. 1913.

1,121,385. Patented Dec. 15,1914.

3 SHEETS-SHEET 1.

WZ 7( 75/ y www J'. A. MCCRBARY.

COKE OVEN DOOR.

APPLIGATION FILED Dnc 12. 1913.

Patented. DGC 15, 1914.

a SHEETS-SHEET 2.V

THE MORRIS PETERS CQ. PHOTO-LITHO, MVASHINGTDN` D4 Cy J. A. MGOREARY.

COKE OVEN DOOR.

APPLICATION FILED Dnc 12. 191s.

1,121,385, Patented B00151914.

TMI

' 'To all whom'tt may concern v JAMES fa. MCCREARY, orooNVNELtsvILLE,PENNSYLVANIA.

. ooKrrovEN noon.

Be it known that l', JAMES A; MCGREARY,

ay citizen of the'United States, residing at Gonnellsville, in thecounty of Fayette and State of Pennsylvania, have invented certain newandusefullmprovements in Coke` Oven Doors,.of which `the following isaspecification.

This invention relatesto the general sub ject of coke' oven doors,and'has particularreference to a novel and practical`doorconstruction-having specialutility in its' appli! cation to furnacesof the cokeoven type,

wherethe doors are .exposed to' 4.great heat.

It is a well known fact thatv the intense heat to which coke ovendoorsare.' subjected causes them tolwarp andy crack oi'otherwise often bedamagedv beyondrepair, so'ithat the lusualf'life of doors ofl thischaracter` is very short.

Accordingly, Vone lof the objects of the present inventionV is toprovide a construe-- tion whereby the life of such doorsisrma`` teriallyincieased,"aiid a distinctive object is to provide a novell andeiiicienttile-locking means carried by certain lportions. ofk

the' door lframe and vadjustable from the voutside of the door. 'Thislatter feature is: one of practical importance, as it increases.

the eliiciency of the door under service conv i n outwardly .from theinner side of the door,

- ditions, and not only facilitatesth'e assem-v bling of the tilesin thedoor frame, but makes it possible to tighten the tiles with.-

' out removing the .door from the oven and without manual discomfort.Invadditi'on to" these advantages, it'makes possible the use ofirregular tile units, andy also provides means of adjustment tocompensate yfor shrinkage of the tiles due to their exposure toheat. 'ji With the above and other objectsin-view, the invention consists inthe-novel construc.

tion, combination,- and arrangement of parts,

hereinafter more fully' described, illustrated, and claimed. V u, L u gA preferred and practical embodiment of the invention is shown'in theaccompanying drawings, in which-4#l v Figure 1 is a side Velevationofthe Aclompletely assembledimproved coke oven door. Fig. 2 is a crosssectional view on the 'line 24-2' of Fig.v 1. Fig. 3 is anelevationofthejskeleton door frame. f Figs. aand are views of the top and bottomcorner vtile units' -employedlin kthe door construction; each viewincluding? aface'view and pro-v specicariqn of Letters Patent;Application `filed December 12, 1913i.v Serial No. 806,308.

frame. 4 Fig..l l

vare provided, as clearly shown rantdneafiaieili.

jectedtop andedge views of one unit.,l

`6 is afpl'an view of all'of the tile units-sepair-ated `and arranged toshow' their relative position tok eachother and` to `1 the door' ris anenlarged sectional. View of a portionof the door ,framel at onelof'w .f

the kcam locking elements. ,FiggS is an en larged side elevation lof theg'construction shown inFig. 7,." l

the drawings.- z, v

Like reference `characters designate cor-.f-

respondingzparts in the several. figures of The present design of lcokeoven door cludes liny its lorganization a main'skeleton frame' memberl lwhich is angular in cross-i' V. section'and preferably of an .invertedU- f shape, having 'its lower lends 2 connected by `means of abottomframe bar 3 whose cross i section isy similar to that of the mainframe member ly- As will be observedl from the` accompanying drawings,thev flange)portion- Y of the entire door frame F, which includes themain frame member l and thebot'toinr frame'member 3, yprojectsoutwardly, while the opposite vflange 5 is disposed at right anglesthereto and forms theinner face `of vthe metallic portion of the door.The said frame member ljis provided with .a transversely disposed andcentrallylocated lockL ing frame bar 6 whose side faces 7 converge whilethe lower'portions 2of the frame' l.-

are connected with'the bottom framebar bymeansof suitable cornerreinforcing elements 8. A vertically arranged hangerv bar` 9 preferablyhas its opposite` ends secured to the flanges of the frame 'members 'lk.i

and 2, andiis also connected to thecorner reinforcing elements 8 at thelower ends of the door frame by means ofl theiibrace arms 10.4Thesaidhanger vbar 9 has attachedito' its upperA portion `av hanger eye11 toifacili? tate the lifting and shifting of the doorbyy the carriageriding on a t'racl\:way,"sueh` as is usuallyv provided for ,handlingvdoors of; this character. Forthe purpose ofUpre-`v` venting thedooryfroin falling `into the oven or furnace, and positioning it inthe'open'- j u f inFig. liof I ing therein, the projecting. .side-'stops12 the drawings. u

From theforegoing the 7exposed portion of the locking bar 'Will be?covered byv itsv corresponding' protecting .f

y 20 'edgevflange rfheedges of ythe tileunitsthat description 'of thefeatures of one of the several units-Will suiicei'or all.

andere! constructed in this manner Yso .that

'i thebeveled side l'can engage with the in`.

f'clined face '7 oigthe centralloclring bar 6',

and thendjacent protectingedge `flangev 16 will cover half of theexposed surface` of said bar.. `Accordingly,-1 when a matching lowerunit is put! inrplace, the. other. half. oi

are adjacent the trarne meinbersll and-2. are i also provided with the.protecting vedge Y side l, to. permit the swinging: into' place flanges17, but the frame portion.y 18: thereof which engagesfunder theiange 4ofthe door frame is straight insteadoft beveledjlikethe oeach of' thetileunits usingithefedge of the Y locking bar 61 asy a fulcrum. 'Each'tiler, is Y. .also provided on thefrainel portion 18` with` apluralityo'likeeper notches 19, tlreffuncf.

tionowhich Will hereinafter. bernore'fully referredy to.

their; protectingedge 'flanges 16 and- 17 Whollyfcover ally of theinteriori metallic partsofthefrarnemembers l and 2 and-theI lo'clringbar6', so .that they are not refr-.posedto theintenseheat' of theffurnace.'v

Spaced at suitable filmer-vals andl arranged 'on the. `frame membersland'25fare af plural-` ity'ofltilefloclring devices designated-:in theirentirety ,byl vthe reference character L.

l Eachoitthese-locking devices yincliide a bear;y

ingbox 20. suitably secured to the flange 4l of the trarne$7 said boX'QObeing provided* Withffa'plurality of. radial notchesV 21,' ari-dt`also include a locking cam blt havingl an .exterior tool engaging nut 23and. a` loclring cam-flange 24 on` they opposite'end of thefshank. 25Which isv journaledivithin thebearingl b oXjgQO. The said` shanlr'jZb-ofthevr locking cam boltr22is also 'provided With ai .diametricalopening-26 adaptedxtol register.l VWitli the notchesQ/l to receivev ayCotter pinY orfequivalentfastening 27 plaeedin oney of l -jby lock`the'y cam bolt against? rotaryl move# -riient in either direction. Theflange 4 of the frame members 1' and 2 isfnecessa-rilyi the'. saidvnotches on the'. bearing box.l to: there provide'dfvvithi a; pluralityof cam' openings '28? vwhich.permit .the cam flange. 24@ to proajectinto bearing engagementvvitltherefractory'tilexunitslli However, toprevent'. th'e'.- cam 24 frornibreaki-ng orf crushingthe:

The said" vtiles '123 include a body portion. 1i which is beveled kat.one side7 as at l5, and provided ixiithgthejnietal protecting edge.iangeg 16,k

Further, in'. connection With?. the. tilez units 18, itwvill be observedthat-1 When all of the said units are inplace that tilel Where it cornesin contact therewvith, and by its grinding and-camming action Wearing'into' the aceoffthe same so that an` `ineffective loclrvvould result,`there is pro# vided a retaining shield Vplate 29 Which-i`sV providedwith a lockinglug'() adapted to the tile unit. Forthe purpose vofproperly positioning "theloclii'ng lug and.V locating it in the keeper`notch in the tile", and also for' preventingthe. tilel Vfromvv falling-,2i-nto.l the furnace, the locking plate 29isprovided at its endopposite the. lug.. 30 HWith` aframe f prevent .iti from'vdropping fromthe `frame.

vengaging.- extension Thereforeyfwhen n i 30 gageinent. withtheretainingplatef29,- the f lug ,31 Will lsecurely engage the tile.unit and From? the. foregoing,description,2 i,twill' v be,"obvious-that; inforder to assemble. .the door,xall-. of the cams 24ewill be turned arounduntil their small diameters rfacevthe spaceprovided 'for the tile units, then all' thetileu-nitscan beplaicedy inthe frame and into brakingl engagement withA the locking.

baar' 6; Which will allow a slight: clearance betweenthefrai'ne.members-and vthe tile unitsat bothy the'` topk and `bottoinf`oiy the door, to permit the insertion ofi the.retain.H

ying;'plate'.QQ.` When lthis has `been done;` all ofthe cams 2.41 Willbegrvturn'ed. untilv they forcibly bear against the retaining.A plates29.` and thereby lock .the tilefunits in. theV` frame; and when the camsare; suiiicientlyV tightra cotterf pin or equivalent vfastening; willbeuplacedinthe one of. the-notches which. isa-.in1 alinernent' vvithftheaxial. open ingfQSfot the cam. bolt. thereby holding. the

canin inV rigid Contact; Withl the retaining;

plate:- lnv eventtheti-lesffbe'gin to shrink While the door. isimposition onthe` ovein, it' will only. be: necessary to remove the:cotten pin and turn thevcamsf sufliciently to. lreepv the retaining,plate always in Contact. vviththie tiles,y thereby re-securing.; thetiles:`

in.l place Without: remoying. 'the d50 from position'. .v

While signsy thereof? necessarily di-Eer tofV suit? t` l particularlocation. in. the door frame; plainlyy appears?, in; Figs: 4v and? 5-and-alsowgini Figs 6, Where `tlreiipper cornerv tile units-.ad.

ditionally designated by the reference'char; .120

acter T. are: shown.-v With?4 rounded corner portier-is. While. 'thelovver iti-le units-LT! f area -all of substantially rectangular form;.-and.

the upper centralI unitsagT42 vhave a" rounded oithetopof. theframev. l

the. i structural characteristics. ofi'- the various tileunits are thesaine, theqfde'j :'re-isebenevea that the various@ features.,

readily.l apparentmtithout. further desc tioni-and-.jthat mirrorchanges.inY detail eonstrction. mayvfbe resortedto.. .Without .des

`and``attirantagesv of*l the invention. Will-:bef

porting frame, a plurality of independently porting frame, tile units,and aplurality e of rotatably adjustable spaced apart edge lockingdevices arranged about said frame, each tile being engaged by certainofsaid devices.

2. A coke oven ydoor includinga tile siipframe, said 'earns adapted tovforce the retaining shield: plates into the keeper notches inthetilestohold the same in .position innthe frame. 4

7. A coke ovendoor including a main removable and replaceable tile.`units carried by'said frame, a frame ,barfor engaging'. similar edges ofall of the tile units, 'and ava `plurality of independent edgelockingmeans carried by said supporting frame for engaging the outeredges of each ofthetile units. i

3. A coke oven door includingy arigid supporting frame, a pluralityofindepend- `ently removable and replaceable tile yunits carriedthereby, a rigid ztile-edge-locking member, and a plurality ofmanually-op--.

erated independent tile-edge-loeling devices carried by said `rigidsupporting frame adapted to force said tile units into lockingengagement with saidv rigid tiley edge-locking member.

at. A coke oven'door including.` a tilevsup-W porting frame, tile-unitscarried by said'r frame, a plurality of locking ca1ns` jourl naled uponsaid frame and adapted 'to be .rotated to lock said tile-units inpost'ioninl the frame.

5. A coke oven door including a tile sup` porting frame, tile-iinitscarried by said frame, a plurality of `locking cams' jourf naled uponsaid frame, a shield plate'inter-l posedbetvveen said `locking cams andthe tile-units, said cams adapted to be rotated into engagement withsaid plate to force 8, A` coke `oven Vdoor including tile-units toholdthe same in position in the frame. f

6. A .coke oven door including a supporting 'frame having a plurality ofcam lslot's ,ltileunits carried. by said frame and provided vvith keepernotches, locking cams journaled upon said frame. and Working in I saidcam slots, retaining shield plates 1nterposed between said tile-unitsand the `tile-unit locking yframe bar, a hanger bai' having 'brace:connections with the frame lthe latter into locking engagement Withthe lmembers and also secured thereto, tile-units f carried `lby said'frameyandlrotatably adjustable means for engaging the edges of saidtile-units for locking the same in positionI in thel frame. l a mainramefm'ember, a bottom frame member, a

central tile-unitlocking frame bar, refrac- 1 tory tiles provided withkeeper notches and framefprotecting edge flanges, having a .lockingyconnection with said central tilelocking."frame bar, and auxiliarytile-unit locking means carried by said frame members adapted to securethe tile-units in the doorframe at their outer edges. `In testimonywhereof I hereunto aix my signature inthe presence of tvvo Witnesses. vv

, JAMES A. MCCREARY'. `l/Vitnesses: v-

R. B. SHAW, HIRAM ANs'rRos.

Copies of this patent may be obtained for ve cents each, byaddressingfthe Commissioner of Patents,

` Washingtoml). C. t

